WO1996038345A1 - Reusable compression sprayer utilizing a disposable collapsible bag - Google Patents

Reusable compression sprayer utilizing a disposable collapsible bag Download PDF

Info

Publication number
WO1996038345A1
WO1996038345A1 PCT/US1996/007982 US9607982W WO9638345A1 WO 1996038345 A1 WO1996038345 A1 WO 1996038345A1 US 9607982 W US9607982 W US 9607982W WO 9638345 A1 WO9638345 A1 WO 9638345A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
tank
outlet
liquid
liquid solution
Prior art date
Application number
PCT/US1996/007982
Other languages
French (fr)
Inventor
Raymond Cracauer
Original Assignee
H.D. Hudson Manufacturing Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by H.D. Hudson Manufacturing Company filed Critical H.D. Hudson Manufacturing Company
Priority to JP8536636A priority Critical patent/JPH10503970A/en
Priority to MXPA/A/1997/000826A priority patent/MXPA97000826A/en
Priority to EP96916761A priority patent/EP0773890B1/en
Publication of WO1996038345A1 publication Critical patent/WO1996038345A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0838—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
    • B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump

Definitions

  • the present invention relates to compression sprayers for spraying under pressure sprayable solutions including pesticides, insecticides, industrial, agricultural, and garden chemicals and the like, and more particularly to a sprayer in which the solution is contained in a bag which may be removed from the sprayer tank when empty and discarded safely without the need to wash out the interior of the tank.
  • Compression sprayers operate under air
  • the tank is usually filled with the desired chemical in concentrated form and diluted by adding water to arrive at the desired solution for
  • the concentrate and the solution may be hazardous, toxic or ecologically undesirable and heretofore when the tank was empty following spraying, the tank would be required to be cleaned for reuse with the inherent danger of the operator being exposed or perhaps coming in contact with the liquid. Moreover, rules and regulations may prohibit the discarding of the tank residue or the cleaning material and liquid.
  • a principal object of the present invention is not to contaminate the environment by washing out and cleaning a compression sprayer after each use.
  • the present invention eliminates this contamination of the environment by
  • a further object is to provide a compression sprayer with a collapsible bag, pouch or lining that may be discarded after completion of a
  • spraying operation may be pre-loaded in concentrated form in the bag and sold in this fashion commercially as a sealed receptacle to avoid having an operator handle an otherwise hazardous, toxic or dangerous chemical.
  • Figure 1 is a perspective view of an assembled compressor sprayer embodying the teachings of the present invention.
  • Figure 2 is an enlarged longitudinal sectional view of the sprayer tank incorporating a disposable bag for the spray solution.
  • Figure 3 is a sectional view of a sealed unfolded pleated disposable bag usable with the present invention.
  • Figure 4 is a similar sectional view of the sealed bag of Figure 3 in a collapsed folded position.
  • Figure 5 is an exploded sectional view of the tube and outlet coupling and the bag of Fig. 4 shown in an unsealed condition ready to be inserted into the tank interior and filled with liquid.
  • Figure 6 is an enlarged sectional view of the outlet of the tank showing the coupling of the bag outlet and outer tube coupling.
  • the compression sprayer 10 of the present invention comprises a tank 12 for containing a liquid or spray solution to be
  • Pump assembly 26 may be anyone of the pump assemblies used in commercially available sprayers or may be of the type disclosed in commonly owned U.S. Patent Application SN 08/218,767 filed March 28, 1994.
  • the pump assembly 26 may be coupled to the tank 12 as shown or as disclosed in the above referenced patent application.
  • the solution to be sprayed will be contained in bag 28 mounted in the interior of tank 12. Bag 28 is designed so that when full it will not interfere with the operation of the pump assembly 26 as shown in Figure 2.
  • the bag 28 may be initially provided in a folded collapsed condition as shown in Figure 4 which may be facilitated by pleats 30.
  • the outlet 32 of the bag 28 may be sealed with a seal 34 as shown in FIGS. 3 and 4 particularly if the bag is filled with concentrated product such as powder or liquid concentrate or has the desired or selected chemical spray dried on the interior of the bag prior to forming and/or
  • a fill spout 36 is inserted into the outlet 32 after the seal 34 is removed prior to installing bag 28 in the tank 12 or could be pre- assembled to the bag and heat sealed to the outlet 32.
  • the folded bag 28 of FIG. 5 is placed in the tank 12 through the tank outlet 24 and is filled with liquid.
  • the bag 28 will unfold as it fills with liquid.
  • the outlet 32 and specifically, the fill spout 36 is coupled to tubing and capped by cap 38 and retainer 40 which is adapted to provide a seal with the spout 36 as well as the mouth of the tank outlet 24.
  • the closure ring 42 is adapted to be threadedly connected with the outlet 24 as shown to maintain this sealed condition.
  • the interior of the tank may be pressurized with the pump assembly 26.
  • the bag 28 will collapse as the liquid therein is sprayed and metered out. In this fashion, the present
  • the invention allows an essentially total dispensed volume regardless of orientation.
  • the bag 28 can be withdrawn from the interior of the tank 2 and then be conveniently discarded.
  • the present invention provides an ecologically suited system for handling, spraying and disposing of hazardous materials and residues.
  • the chemicals to be sprayed may be advantageously supplied commercially as a concentrated product in dry or liquid form in the collapsed and sealed bag 28. No dip tub is needed.
  • the expended bag following spraying may be removed when empty and discarded as prescribed.
  • the sprayer 10 can be reused without having to wash out the interior of the tank 12.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)

Abstract

A compression sprayer is provided with a bag (28) in the tank (12) for holding the product to be sprayed. The bag (28) may be provided in a pleated (fig. 3), folded pre-filled condition containing the product in concentrated form. The bag (28) is mounted internally of the tank (12) and filled with liquid to provide a solution to be sprayed. An internally mounted pump (26) pressurizes the interior of the tank (12) to compress the bag (28) which collapses and expels its contents.

Description

REUSABLE COMPRESSION SPRAYER UTILIZING A DISPOSABLE COLLAPSIBLE BAG
BACKGROUND OF THE INVENTION
The present invention relates to compression sprayers for spraying under pressure sprayable solutions including pesticides, insecticides, industrial, agricultural, and garden chemicals and the like, and more particularly to a sprayer in which the solution is contained in a bag which may be removed from the sprayer tank when empty and discarded safely without the need to wash out the interior of the tank.
Compression sprayers operate under air
pressure generated by intermittent activation of a pump and collected in the tank in a manner whereby spraying may be intermittently or continuously effected over a substantial period of time or until the pressure in the tank is sufficiently decreased or exhausted as to require the operator to again manipulate the pump to build up sufficient
operating air pressure in the tank.
The tank is usually filled with the desired chemical in concentrated form and diluted by adding water to arrive at the desired solution for
spraying. The concentrate and the solution may be hazardous, toxic or ecologically undesirable and heretofore when the tank was empty following spraying, the tank would be required to be cleaned for reuse with the inherent danger of the operator being exposed or perhaps coming in contact with the liquid. Moreover, rules and regulations may prohibit the discarding of the tank residue or the cleaning material and liquid. The cleaning
residues become left over material which may very well contaminate the environment when the cleaning operation is taking place.
SUMMARY OF THE INVENTION
A principal object of the present invention is not to contaminate the environment by washing out and cleaning a compression sprayer after each use. In this regard the present invention eliminates this contamination of the environment by
eliminating the need for sprayer tank washing and water contamination at the point of use .
A further object is to provide a compression sprayer with a collapsible bag, pouch or lining that may be discarded after completion of a
spraying operation, but more importantly, may be pre-loaded in concentrated form in the bag and sold in this fashion commercially as a sealed receptacle to avoid having an operator handle an otherwise hazardous, toxic or dangerous chemical.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of an assembled compressor sprayer embodying the teachings of the present invention.
Figure 2 is an enlarged longitudinal sectional view of the sprayer tank incorporating a disposable bag for the spray solution.
Figure 3 is a sectional view of a sealed unfolded pleated disposable bag usable with the present invention.
Figure 4 is a similar sectional view of the sealed bag of Figure 3 in a collapsed folded position.
Figure 5 is an exploded sectional view of the tube and outlet coupling and the bag of Fig. 4 shown in an unsealed condition ready to be inserted into the tank interior and filled with liquid.
Figure 6 is an enlarged sectional view of the outlet of the tank showing the coupling of the bag outlet and outer tube coupling.
DETAILED DESCRIPTION OF THE DRAWINGS
In the drawings, the compression sprayer 10 of the present invention comprises a tank 12 for containing a liquid or spray solution to be
dispensed in a desired or selected spray pattern under pressure through an adjustable discharge nozzle 14 and the distal end of an extension rod 16. The discharge is controlled by a manually operated valve 18 at the proximal end of the rod and interposed between the rod and tubing 22 extending from the outlet 24 of the tube 10.
The interior of the tank is pressurized by the manually actuated reciprocal piston pump assembly 26. Pump assembly 26 may be anyone of the pump assemblies used in commercially available sprayers or may be of the type disclosed in commonly owned U.S. Patent Application SN 08/218,767 filed March 28, 1994. The pump assembly 26 may be coupled to the tank 12 as shown or as disclosed in the above referenced patent application.
The solution to be sprayed will be contained in bag 28 mounted in the interior of tank 12. Bag 28 is designed so that when full it will not interfere with the operation of the pump assembly 26 as shown in Figure 2. The bag 28 may be initially provided in a folded collapsed condition as shown in Figure 4 which may be facilitated by pleats 30. The outlet 32 of the bag 28 may be sealed with a seal 34 as shown in FIGS. 3 and 4 particularly if the bag is filled with concentrated product such as powder or liquid concentrate or has the desired or selected chemical spray dried on the interior of the bag prior to forming and/or
sealing. A fill spout 36 is inserted into the outlet 32 after the seal 34 is removed prior to installing bag 28 in the tank 12 or could be pre- assembled to the bag and heat sealed to the outlet 32.
The folded bag 28 of FIG. 5 is placed in the tank 12 through the tank outlet 24 and is filled with liquid. The bag 28 will unfold as it fills with liquid. When the bag 28 is filled to the desired extent, the outlet 32 and specifically, the fill spout 36 is coupled to tubing and capped by cap 38 and retainer 40 which is adapted to provide a seal with the spout 36 as well as the mouth of the tank outlet 24. The closure ring 42 is adapted to be threadedly connected with the outlet 24 as shown to maintain this sealed condition.
After capping, the interior of the tank may be pressurized with the pump assembly 26. The bag 28 will collapse as the liquid therein is sprayed and metered out. In this fashion, the present
invention allows an essentially total dispensed volume regardless of orientation. When empty, the bag 28 can be withdrawn from the interior of the tank 2 and then be conveniently discarded.
Accordingly, the present invention provides an ecologically suited system for handling, spraying and disposing of hazardous materials and residues. The chemicals to be sprayed may be advantageously supplied commercially as a concentrated product in dry or liquid form in the collapsed and sealed bag 28. No dip tub is needed. The expended bag following spraying may be removed when empty and discarded as prescribed. The sprayer 10 can be reused without having to wash out the interior of the tank 12.
Thus, the several aforenoted advantages are most effectively attained. Although a single somewhat preferred embodiment of the invention has been disclosed and described in detail herein, it should be understood that the invention is in no sense limited thereby and its scope is to be determined by that of the appended claims.

Claims

CLAIMS I Claim:
1. A compression sprayer comprising a tank having an interior and an outlet and a manually activated piston pump assembly mounted in the interior of the tank for pressurizing the tank interior, discharge tubing coupled with the outlet and having a discharge nozzle coupled therewith and a valve for controlling the discharge from the nozzle, and a bag having an outlet coupled with the tank outlet and adapted to contain a liquid
solution to be sprayed and adapted to collapse under the pressure within the tank interior as the liquid solution is discharged from the bag.
2. The invention in accordance with claim 1 wherein the bag includes pleats for permitting this bag to be folded to a collapsed position that permits insertion of this collapsed bag into the tank through the tank outlet and an unfolded position as it is filled with the liquid solution to be sprayed.
3. The invention in accordance with claim 1 wherein the bag outlet is initially sealed and contains a selected concentrate and is unsealed prior to filling with liquid to provide the liquid solution from the concentrate for spraying.
4. The invention in accordance with claim 1 wherein a fill spout is sealed to the bag outlet to facilitate the filling of the bag with liquid and the coupling with the tank outlet.
5. The invention in accordance with claim 1 wherein the bag includes pleats for permitting this bag to be folded to a collapsed position that permits insertion of this collapsed bag into the tank through the tank outlet and an unfolded position as it is filled with the liquid solution to be sprayed, the bag outlet is initially sealed and contains a selected concentrate and is unsealed prior to filling with liquid to provide the liquid solution from the concentrate for spraying, a fill spout is sealed to the bag outlet to facilitate the filling of the bag with liquid and the coupling with the tank outlet.
6. A bag for mounting in the interior of a compression sprayer tank having a tank outlet and having a bag outlet adapted to be coupled with the tank outlet, the bag adapted to contain a liquid solution to be sprayed and adapted to collapse under pressure within the tank interior as the liquid solution is discharged from the bag, the bag including pleats for permitting this bag to be folded to a collapsed position that permits
insertion of this collapsed bag into the tank through the tank outlet and an unfolded position as it is filled with the liquid solution to be
sprayed.
7. The invention in accordance with claim 6 wherein the bag outlet is initially sealed and contains a selected concentrate and is unsealed prior to filling with liquid to provide the liquid solution from concentrate for spraying.
8. The invention in accordance with claim 6 wherein a fill spout is sealed to the bag outlet to facilitate the filling of the bag with liquid and the coupling with the tank outlet.
9. The invention in accordance with claim 6 wherein the bag outlet is initially sealed and contains a selected concentrate and is unsealed prior to filling with liquid to provide the liquid solution from concentrate for spraying, a fill spout is sealed to the bag outlet to facilitate the filling of the bag with liquid and the coupling with the tank outlet.
PCT/US1996/007982 1995-06-01 1996-05-30 Reusable compression sprayer utilizing a disposable collapsible bag WO1996038345A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8536636A JPH10503970A (en) 1995-06-01 1996-05-30 Reusable pressurized sprayer using foldable disposable bags
MXPA/A/1997/000826A MXPA97000826A (en) 1995-06-01 1996-05-30 Reusable compression spray that employs a folding bag eliminates
EP96916761A EP0773890B1 (en) 1995-06-01 1996-05-30 Reusable compression sprayer utilizing a disposable collapsible bag

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/457,762 1995-06-01
US08/457,762 US5607082A (en) 1995-06-01 1995-06-01 Reusable compression sprayer utilizing a disposable collapsible bag

Publications (1)

Publication Number Publication Date
WO1996038345A1 true WO1996038345A1 (en) 1996-12-05

Family

ID=23817997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/007982 WO1996038345A1 (en) 1995-06-01 1996-05-30 Reusable compression sprayer utilizing a disposable collapsible bag

Country Status (4)

Country Link
US (1) US5607082A (en)
EP (1) EP0773890B1 (en)
JP (1) JPH10503970A (en)
WO (1) WO1996038345A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975924A1 (en) * 2011-05-31 2012-12-07 Messier Bugatti Dowty Polymerizable liquid sprayer, useful to repaint areas of aircraft e.g. a portion of a landing gear, comprises a storage chamber, a spray nozzle, a connecting conduit, a pump, a deformable container, and a pressure accumulation chamber
WO2022225423A1 (en) * 2021-04-22 2022-10-27 Общество С Ограниченной Ответственностью "Аквафор" (Ооо "Аквафор") Liquid dispensing assembly

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US6820824B1 (en) * 1998-01-14 2004-11-23 3M Innovative Properties Company Apparatus for spraying liquids, disposable containers and liners suitable for use therewith
DE19959230C1 (en) * 1999-12-08 2001-04-05 Fresenius Medical Care De Gmbh Two-sheet pouch, used as disposable haemodialysis container, comprises top and bottom closed by convex weld seams and is repeatedly folded parallel to its vertical axis
WO2001087724A1 (en) 2000-05-12 2001-11-22 H.D. Hudson Manufacturing Company Child-resistant fluid delivery device
US6691893B2 (en) * 2001-04-13 2004-02-17 Sloan Valve Company Replaceable reservoir for liquid dispenser
US7143960B2 (en) * 2001-03-14 2006-12-05 3M Innovative Properties Company Liquid sample reservoir suitable for use with a spraying apparatus
US6595392B2 (en) 2001-12-04 2003-07-22 B & B Company Spray pump apparatus
GB0210446D0 (en) * 2002-05-08 2002-06-12 3M Innovative Properties Co Conformable pouch reservoir for spray gun
GB0210448D0 (en) 2002-05-08 2002-06-12 3M Innovative Properties Co Valve closure for spray gun reservoir
US7918369B2 (en) * 2002-09-25 2011-04-05 Illinois Tool Works Inc. Two-component spray gun with solvent flush/blend
US7845582B2 (en) * 2002-12-18 2010-12-07 3M Innovative Properties Company Spray gun reservoir with oversize, fast-fill opening
GB2405138A (en) * 2003-07-24 2005-02-23 Bw Technologies Ltd Valves for portable flexible drinking vessels
US7083119B2 (en) * 2003-09-25 2006-08-01 3M Innovative Properties Company Security clip for spray gun connector
EP2450108B1 (en) 2004-12-16 2016-11-30 Saint-Gobain Abrasives, Inc. Liquid supply cup and liner assembly for spray guns
US7118050B1 (en) * 2005-07-20 2006-10-10 Chiang-Pei Chen Sprayer with changeable volume
US20070235471A1 (en) * 2006-03-27 2007-10-11 Radermacher Marty E Back pack applicator for coatings or sealants
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly
EP2029285B1 (en) 2006-06-20 2012-11-21 Saint-Gobain Abrasives, Inc. Liquid supply assembly
EP2162368A4 (en) * 2007-06-29 2011-06-29 Diversey Inc Pressurized dispensable container operable in any orientation
US7901376B2 (en) * 2007-07-05 2011-03-08 Baxter International Inc. Dialysis cassette having multiple outlet valve
EP2704848B1 (en) 2011-05-06 2019-07-03 Saint-gobain Abrasives, Inc Paint cup assembly with an extended ring
ES2739299T3 (en) 2011-06-30 2020-01-30 Saint Gobain Abrasives Inc Paint container set
MX2014007887A (en) 2011-12-30 2014-10-06 Saint Gobain Abrasives Inc Convertible paint cup assembly with air inlet valve.
DE102021006435A1 (en) 2021-12-31 2023-07-06 Chemprox Gmbh Mobile spray system for spraying a liquid
USD1011479S1 (en) * 2023-07-31 2024-01-16 Bin Jiang Watering can

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US4043510A (en) * 1975-11-21 1977-08-23 Morris William E Non-aerosol type dispenser
US4121736A (en) * 1976-08-23 1978-10-24 Mcgaw Jr Wilbert Hersman Hand held atomizer washing device
US4964540A (en) * 1984-10-17 1990-10-23 Exxel Container, Inc. Pressurized fluid dispenser and method of making the same
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US1751129A (en) * 1928-05-05 1930-03-18 Nathaniel C Barnes Dispenser
US4043510A (en) * 1975-11-21 1977-08-23 Morris William E Non-aerosol type dispenser
US4034896A (en) * 1975-12-18 1977-07-12 Wilson Walon K Diaphragm controlled garden and orchard sprayer
US4121736A (en) * 1976-08-23 1978-10-24 Mcgaw Jr Wilbert Hersman Hand held atomizer washing device
US4964540A (en) * 1984-10-17 1990-10-23 Exxel Container, Inc. Pressurized fluid dispenser and method of making the same
US5398852A (en) * 1993-09-02 1995-03-21 Lacy; Johnson W. Tank pressurization cap

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975924A1 (en) * 2011-05-31 2012-12-07 Messier Bugatti Dowty Polymerizable liquid sprayer, useful to repaint areas of aircraft e.g. a portion of a landing gear, comprises a storage chamber, a spray nozzle, a connecting conduit, a pump, a deformable container, and a pressure accumulation chamber
WO2022225423A1 (en) * 2021-04-22 2022-10-27 Общество С Ограниченной Ответственностью "Аквафор" (Ооо "Аквафор") Liquid dispensing assembly

Also Published As

Publication number Publication date
EP0773890B1 (en) 2001-08-01
EP0773890A4 (en) 1999-08-18
EP0773890A1 (en) 1997-05-21
MX9700826A (en) 1997-09-30
JPH10503970A (en) 1998-04-14
US5607082A (en) 1997-03-04

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